Most of my full mouth FULL implant reconstructions do not have second molar replacement. Make sure you are assessed carefully for your bite to see if you really need them or not. Ideally, most second molars should be replaced. It often becomes confusing to answer questions about specific tooth numbers unless you are very specific as to where you live! These correspond to the international numbers of 18, 28, 38 and 48. In the United States the second molars are numbered: 2, 15, 18, 31 Please note that in the United States versus internationally, we number teeth differently. He elected to have me place a dental implant. If he does not replace it, the upper tooth will eventually be lost.
You can see from the side view that nothing supports the upper molar. This particular patient is missing a second molar on the bottom jaw. A more advanced procedure is to have an implant, bone graft and extraction on the same day. Please keep in mind that not all molars need a socket bone graft and then the implant a few months later. Sometimes the bone over-erupts as well causing a much more serious problem. The lower molars do not over erupt as commonly as the upper molars do when the opposing tooth is removed. So some teeth are only biting on half of the tooth…. This is because the upper and lower molars do not align perfectly on top of each other they tend to be a half tooth off. This is because most people have a class I bite and the molar that is left behind on the bottom usually still has something to bite against. Some people can get away without replacing the upper second molar. If it is the upper molar that got removed, the rules are a little bit different. It will drift enough to where you will end up biting your cheek and gum, and this can also become an interference in your bite, which may cause “TMJ”…temporomandibular jaw joint problems (TMD.) Without contact with another tooth, our teeth tend to drift. The reason for it is if you do not replace the bottom molar, the upper opposing second molar will begin to over erupt out of its socket, trying to reach its old partner that got extracted. So do you need to replace this tooth? If it is the bottom molar and you still have the upper opposing molar than I would typically say yes. I even had my own second molar break a few years ago! These molar teeth tend to break because it is in an area of high power. The second molars are directly in line with our main chewing muscle called the masseter. This is under the assumption that your wisdom tooth or “third molar” was extracted or is still under the gums. To be clear, typically our last molar that shows in the mouth is our second molar. My last molar was extracted… Do I need a dental implant? I have received this comment/question so many times that I decided to write a quick post about it! Missing Lower Second Molar –No bite support on Upper Molar after lower was lost Last Molars Are Not Always Needed
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